As an alternative, a full set of SD & S can be purchased at the Public Works Department public counter for $25. This set can be kept as a master copy and updated by downloading and printing only those drawings that have been revised. The SD & S may be updated from time to time as required, without prior notice. It is the responsibility of interested parties to keep their master copies of these documents current. It is the contractors' responsibility to obtain and maintain up-to-date copies of the standard drawings while performing any work in the Public Right-of Way.